General
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Target
dfsdf.exe
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Size
3.1MB
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MD5
44aaa2c8fd4f8705bed96d6e4cf0ab85
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SHA1
2ab7832577f3407c85da9fa894b7cd16f346003d
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SHA256
f804bfcdfac2e6073dec8bf16d5665ce74bc45aafcd91603d0f540612a247268
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SHA512
9734659ceb894941e7fce2760d46ca2019bd5a2a26f164a16c0dc0695fb42ae9161093843a4bc78dd46205f90d1692436e8580392d11180bf1792ab486cc6ae6
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SSDEEP
49152:7vElL26AaNeWgPhlmVqvMQ7XSKnCn1J6eoGdSoTHHB72eh2NT:7vkL26AaNeWgPhlmVqkQ7XSKnCx
Malware Config
Extracted
quasar
1.4.1
Office04
nexosmith1231-54169.portmap.host:54169
607f231f-37d7-40a6-8790-f623e2b7c3d5
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encryption_key
57AD3106034C3A8FFC913D430F88F63E17B5BC5D
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource dfsdf.exe
Files
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dfsdf.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ